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Product differentiation and duopoly: when social welfare benefits from cross-shareholding

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  • Luciano Fanti

Abstract

The present paper analyses the effects on social welfare of a partial crossparticipation at ownership level in a differentiated Cournot duopoly. We show that cross-participation, despite the fact it appears as an anti-competitive practice which reduces the degree of market competition, may increase social welfare when the products are complements between them, and, moreover, not only profit but also consumer's welfare is enhanced. Therefore, the policy implication is that in industries characterised by product complementarity larger cross-participations at ownership level should be allowed, despite their anticompetitive nature.

Suggested Citation

  • Luciano Fanti, 2011. "Product differentiation and duopoly: when social welfare benefits from cross-shareholding," Discussion Papers 2011/129, Dipartimento di Economia e Management (DEM), University of Pisa, Pisa, Italy.
    • Handle: RePEc:pie:dsedps:2011/129
    Note: ISSN 2039-1854
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    File URL: https://www.ec.unipi.it/documents/Ricerca/papers/2011-129.pdf
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    References listed on IDEAS

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    Cited by:

    1. Fanti, Luciano, 2016. "Social welfare and cross-ownership in a vertical industry: When the mode of competition matters for antitrust policy," Japan and the World Economy, Elsevier, vol. 37, pages 8-16.

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    More about this item

    Keywords

    Complementary products; Cross-ownership; Duopoly; Product differentiation; Social welfare.;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L4 - Industrial Organization - - Antitrust Issues and Policies

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